What describes a large molecule composed of repeating structural units or monomers?

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Multiple Choice

What describes a large molecule composed of repeating structural units or monomers?

Explanation:
A polymer is a large molecule built from many repeating units called monomers that are covalently linked. This fits molecules like DNA, proteins, and starch, where long chains are formed by linking together nucleotides, amino acids, or glucose units. A monomer is just a single building block, so it doesn’t describe a large molecule on its own. Nucleic acids are a type of polymer, but the term nucleic acid refers to the class itself rather than the general idea of a long, repeating chain. Lipids aren’t formed from repeating monomer units in the same way and don’t create long polymers.

A polymer is a large molecule built from many repeating units called monomers that are covalently linked. This fits molecules like DNA, proteins, and starch, where long chains are formed by linking together nucleotides, amino acids, or glucose units. A monomer is just a single building block, so it doesn’t describe a large molecule on its own. Nucleic acids are a type of polymer, but the term nucleic acid refers to the class itself rather than the general idea of a long, repeating chain. Lipids aren’t formed from repeating monomer units in the same way and don’t create long polymers.

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